1   /**
2    * Copyright (c) 2000-2009 Liferay, Inc. All rights reserved.
3    *
4    *
5    *
6    *
7    * The contents of this file are subject to the terms of the Liferay Enterprise
8    * Subscription License ("License"). You may not use this file except in
9    * compliance with the License. You can obtain a copy of the License by
10   * contacting Liferay, Inc. See the License for the specific language governing
11   * permissions and limitations under the License, including but not limited to
12   * distribution rights of the Software.
13   *
14   * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15   * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16   * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
17   * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
18   * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
19   * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
20   * SOFTWARE.
21   */
22  
23  package com.liferay.portal.search.lucene;
24  
25  import com.liferay.portal.kernel.search.Query;
26  import com.liferay.portal.kernel.search.StringQueryImpl;
27  import com.liferay.portal.kernel.util.StringPool;
28  
29  import org.apache.lucene.queryParser.ParseException;
30  import org.apache.lucene.queryParser.QueryParser;
31  
32  /**
33   * <a href="QueryTranslator.java.html"><b><i>View Source</i></b></a>
34   *
35   * @author Brian Wing Shun Chan
36   */
37  public class QueryTranslator {
38  
39      public static org.apache.lucene.search.Query translate(Query query)
40          throws ParseException {
41  
42          if (query instanceof BooleanQueryImpl) {
43              return ((BooleanQueryImpl)query).getBooleanQuery();
44          }
45          else if (query instanceof LuceneQueryImpl) {
46              return ((LuceneQueryImpl)query).getQuery();
47          }
48          else if (query instanceof StringQueryImpl) {
49              QueryParser parser = new QueryParser(
50                  StringPool.BLANK, LuceneUtil.getAnalyzer());
51  
52              return parser.parse(query.toString());
53          }
54          else if (query instanceof TermQueryImpl) {
55              return ((TermQueryImpl)query).getTermQuery();
56          }
57          else {
58              return null;
59          }
60      }
61  
62  }